Tubular Trough Screw Conveyors-CAO

• The modular CAO Tubular Screw Conveyor system is highly versatile offering numerous solutions for conveying powdery or granular materials.
• CAO Screw Conveyors are manufactured from carbon steel with suitable surface finishing.
• They consist of a tubular trough equipped with at least one inlet and outlet spout, an end plate at each tubular trough end, helicoid screw flighting welded on a centre pipe with coupling bush at each end, two end bearing assemblies complete with adjustable shaft seal, and a number of intermediate hanger bearings depending on the overall length of the screw conveyor. Furthermore, CAO Tubular Screw Conveyors are equipped with a gear motor appropriate for the application.
• Depending on the material to be handled, CAO Tubular Screw Conveyors come in a light or medium heavy-duty design.
• Both versions are available with ATEX, Zone 22 certification.

• The light-duty version, CAO_L, is mainly used for feeding and conveying flour and flour milling by-products.
• The medium heavy-duty version, CAO_P, is mainly used in animal feed milling with products such as cereals, meals and milling by-products.
• In general, CAO Tubular Screw Conveyors and Feeders are suitable for applications that require minimum material residue and maximum conservation of particle size of the material when handled.

• Standard length tubular sections.
• Helicoid flighting welded on centre pipe.
• Powder-coated.
• Flanged end bearing assemblies protected against material infiltration by adjustable shaft seals.
• Wide range of intermediate hanger bearings designed for specific applications (self-lubricating versions included).
• Circular, square or rectangular inlet and outlet spouts complete with drilled WAM standard flanges.
• Robust cast iron body, flanged end bearing assemblies with external bearings and manually adjustable packed gland seals.
• Maintenance-free (or non) intermediate cast or fabricated hanger bearings with self-lubricating and other type slide bushes.
• Splined shaft couplings.

•         Bare shaft
•         Direct compact gear motor drive
•         Direct gear motor drive with semi-elastic coupling
•         Offset gear motor drive with chain transmission
•         Offset drive with belt transmission

•     Robust tubular trough in modular flanged sections in carbon or stainless steel.
•     Light-duty helicoid flighting welded on centre pipe in carbon or stainless steel.

    For medium heavy-duty version:

•     Medium heavy-duty carbon steel helicoid flighting welded on centre pipe.
•     Robust tubular carbon steel trough in modular flanged sections.

•     Industrial quality product.
•     Modular design features ensuring matching spare parts.
•     Worldwide spare parts availability through WAM subsidiaries.

•     Circular, square, or rectangular substitute/additional inlet/outlet spouts with or without connecting flange.
•     Trough feet.
•     Overflow hatches.
•     Screws (augers) in various configurations (ribbon flight, paddles, others).
•     Special shaft seals (gas or air-purged, grease chamber, others).
•     Different drive configurations.
•     Jacketed outside tube.
•     Drop bottom tube.
•     Slide valves.
•     Flush outlets.
•     For medium heavy-duty version.
•     Screws manufactured from special wear-resistant materials.